Abstract
Mycotoxin contamination is a serious threat to food safety and human health. The development of efficient degradation strategies targeting mycotoxins is valuable. In this paper, magnetic TiO2@SiO2 hybrid photonic crystal microspheres (MHPCMs) were designed and prepared by the water-in-oil droplet method through a simple two-phase home-made microfluidic device for the degradation of deoxynivalenol (DON), the most serious mycotoxin contaminating cereals and feeding samples among natural mycotoxins. The morphologies of the synthesized microspheres were investigated by both metallurgical microscope and scanning electronic microscope (SEM), confirming that MHPCMs have a spherical shape and regular photonic crystal nanostructures. In the self-assembly system, TiO2 and Fe3O4 nanoparticles were responsible to form photocatalytic sites and magnet response, respectively. The effect of the TiO2 and Fe3O4 contents in the microspheres on their morphology and photocatalytic degradation activity was studied in detail. Finally, the optimized MHPCM could degrade DON in water under the light irradiation and be recycled easily by magnet.
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Acknowledgements
The project was funded by National Natural Science Foundation of China (Grant Nos. 31471642, 31071542 and 21705073), the Pig Innovation Team Plan of Modern Agricultural Technology System of Shandong Province (Grant No. SDAIT-08-17), and the National Key Research and Development Project of China (Grant No. 2019YFC1606404).
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Li, Q., Deng, Y., Dai, S. et al. Microfluidic Assembly Synthesis of Magnetic TiO2@SiO2 Hybrid Photonic Crystal Microspheres for Photocatalytic Degradation of Deoxynivalenol. J Inorg Organomet Polym 31, 2360–2367 (2021). https://doi.org/10.1007/s10904-020-01806-0
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DOI: https://doi.org/10.1007/s10904-020-01806-0